Francis Shen says that he often calls neurolaw a \u201cnew\u201d and \u201cemerging\u201d field, but even he doesn\u2019t completely believe that. Shen is an associate law professor at the University of Minnesota and executive director of education for the MacArthur Foundation Research Network on Law. He says we\u2019ve been using neuroscience in law for decades, but there have been some major developments over the last few years. For example, brain science is increasingly informing how we view criminals \u2014 especially adolescents \u2014 and how we sentence people. We talk with Shen about the influence neurolaw has on society and how the field has developed over time.